The Frankish Kingdom was a powerful realm in Western Europe during the early Middle Ages, primarily established by the Franks, a Germanic tribe. It emerged in the 5th century and expanded significantly under the leadership of notable kings like Clovis I, who united various Frankish tribes and converted to Christianity, strengthening ties with the Roman Catholic Church. The kingdom reached its height under Charlemagne, who became the first Holy Roman Emperor in 800 AD. His reign marked a cultural and political revival known as the Carolingian Renaissance, which promoted learning and the arts. After Charlemagne's death, the kingdom eventually fragmented into smaller territories, leading to the rise of modern European nations.